[rdiff-backup-users] Archive older files/speed question

[Niki Hammler]

Hi,

1.) Is there a way to save old increments to another directory?
I'd like to archive all changes monthly on a DVD and like to keep diffs 
on the backup drive for only one or to months.

I've just found --remove-older-than.

I've looked on the internet but could not find anything about that.

2.) If for example would like to restore a file 365 days. Is it correct 
that I have to apply all diffs since then?

3.) I've already used rdiff-backup but I had a big problem that backup 
needed ~20 hours 
(http://lists.nongnu.org/archive/html/rdiff-backup-users/2005-02/msg00018.html)
After that, I did it with rsync and backup was done in 5-8 minutes with 
the SAME source and destination directory.

Last use of rdiff-backup (2005-02-10): 14 hours 9 minutes 47.72 seconds
First use of rdiff (2005-02-14): 5 minutes 4 seconds

I don't know what the problem was, however, since then, I've 1.7Ghz 
instead of 300Mhz, 512MB RAM instead of 200 and sarge instead of woody now.

I want to give rdiff-backup another try because I like the concept and I 
do hope that it will work faster now. It would be great if backup could 
be finished in max. 10 minutes as with rsync.

rdiff-backup only backups files where modification times changes, 
doesn't it? (I hope that it doesn't compare each file)

I have a few very large apache log files (500MB) where data is only 
appended and old snapshots aren't needed (apache logs). Is it possible 
to exclude some files/folders from diff but back them up also?
I've nothing found in man-page.

Are there any other tweaks to speed up rdiff-backup?

Thanks a lot in advance,


Niki


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